Tackle your interior woodworking and joinery with confidence using these Spax screws. The t-star plus T20 drive ensures optimal torque transmission while preventing bit slipping and cam-out during intensive fastening. Designed with a full thread, each 4.5x45 mm steel screw delivers exceptional holding power and rigid connections across chipboard, MDF, and plywood panels. The countersunk multi-head sinks flush into the timber surface without splitting the material or requiring pre-drilling in softwoods. Finished with an advanced Wirox coating, these screws offer superior corrosion protection for long-lasting furniture and indoor construction projects.